Home / 725,194.78-1,087,484.61-345,676.48

Finding the Fourth Proportional to 725,194.78, 1,087,484.61 and 345,676.48

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Solution

The fourth proportional to 725,194.78, 1,087,484.61 and 345,676.48 is: 518,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,194.78 : 1,087,484.61 = 345,676.48 : x
  2. Step 2: Convert to fraction form
    725,194.78/1,087,484.61 = 345,676.48/x
  3. Step 3: Cross multiply
    725,194.78x = 1,087,484.61 × 345,676.48
  4. Step 4: Simplify right side
    725,194.78x = 375,917,852,038.97
  5. Step 5: Solve for x
    x = 375,917,852,038.97/725,194.78
  6. Step 6: Final answer
    x = 518,368.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.